What was the 1st CAS pocket calculator?

[compsystems]

Symbolic manipulation is not properly a full CAS engine, are some subroutines or functions on numerical kernel

This is my list of CAS history about calculators.

1: The first complete CAS engine in a calculator was incorporated in the TI-68K series (TI-92 of 1995) then in the TI92+, TI-89, TI-VOYAGE200 and in a new series TI-NSPIRE as (TI-NSPIRE [CX] CAS).

I suggested to Texas Instruments that they add the acronym CAS in the TI-NSPIRE and they accepted my request =)

https://en.wikipedia.org/wiki/TI-92_series

The Texas Instruments company bought the famous CAS DERIVE (DOS) and port the source code to run on a MC68000 motorola processor aka m68k, and then on the ti-nspire, so the DERIVE never died =)

2: The HP49 (1999), I say that included a CAS but very basic, ERABLE, the first works of our great friend and programmer BERNARD PARISSE, Then ERABLE evolved in xCAS

https://en.wikipedia.org/wiki/HP_49/50_series#50g

3. In 2003 CASIO released the ClassPad 300
Somewhere I read that it has the engine of MAPLE IV, I would like to know that someone confirms it me.

https://en.wikipedia.org/wiki/Casio_ClassPad_300

4: In 2013 HP released the HP-PRIME with XCAS as the engine, is becoming the best CAS mounted on a calculator, if there were more developers XCAS parallel could even compete with MAPLE and why not with mathematica

https://en.wikipedia.org/wiki/HP_Prime

5: waiting 201x for SHARP or another developer to launch a calculator with CAS and only touch and large screen (320 × 528 [as classPAD]). Can be NEW-RPL currently is in the part of creation of the numerical engine and some of the symbolic

https://sourceforge.net/projects/newrpl/